Method and apparatus for providing dispersion and dispersion slope compensation in an optical communication system
AssigneeTyco Submarine Systems Ltd.
InventorXiaobing Ma
Life of this patent
Estimating the term…
Abstract
An optical transmission system is provided that includes a transmitting terminal, a receiving terminal remotely located from the transmitting terminal, and an optical transmission path connecting the transmitting terminal to the receiving terminal. The optical transmission path includes at least one optical amplifier such that portions of the optical transmission path located between adjacent optical amplifiers or terminals denote a transmission span. The path includes constituent optical fiber having a positive dispersion shift, dispersion compensating optical fiber having a negative dispersion shift, and dispersion slope compensating fiber having a negative dispersion slope.
Claims23
An optical transmission system comprising:
- a transmitting terminal;
- a receiving terminal remotely located from the transmitting terminal;
- an optical transmission path connecting said transmitting terminal to said receiving terminal, said optical transmission path including at least one optical amplifier such that portions of the optical transmission path located between adjacent optical amplifiers or between said transmitting terminal and a first of said at least one optical amplifier or between the last of said at least one optical amplifier and the receiving terminal denote a transmission span, said path including;
- constituent optical fiber having a positive dispersion shift;
- dispersion compensating optical fiber having a negative dispersion shift;
- dispersion slope compensating fiber having a negative dispersion slope.
A method of transmitting an optical signal through an optical transmission path that includes at least one optical amplifier such that portions of the optical transmission path located between adjacent optical amplifiers or between said transmitting terminal and a first of said at least one optical amplifier or between the last of said at least one optical amplifier and the receiving terminal denote a transmission span, said path including;
- generating an optical signal;
- transmitting said optical signal through constituent optical fiber having a positive dispersion shift;
- periodically providing dispersion compensation with dispersion compensating optical fiber having a negative dispersion shift;
- periodically providing dispersion slope compensation with dispersion slope compensating fiber having a negative dispersion slope.
An optical transmission path comprising:
- a first optical fiber adapted to receive an optical signal from a transmitting terminal;
- a second optical fiber adapted to transmit the optical signal to a receiving terminal remotely located from the transmitting terminal;
- a dispersion compensating path connecting said first optical fiber to said second optical fiber, said dispersion compensating path including at least one optical amplifier such that portions of the dispersion compensating path located between adjacent optical amplifiers or between said transmitting terminal and a first of said at least one optical amplifier or between the last of said at least one optical amplifier and the receiving terminal denote a transmission span, said dispersion compensating path including;
- constituent optical fiber having a positive dispersion shift;
- dispersion compensating optical fiber having a negative dispersion shift;
- dispersion slope compensating fiber having a negative dispersion slope.
Dependencies are inferred from the claim text.